Machine ruling pen



March 22, 1932. R. A. IHICKOK 1,850,931-

MACHINE RULING PEN Filed Sept. 13, 1929 F ss HICKOK abbmnew Patented Mar. 22, 1932 UNITED STATES PATENT OFFICE ROSS A. HICKOK, OF HARRISBURG, PENNSYLVANIA, ASSIGNOR T W. O. HIGKOK MANUFACTURING COMPANY, OF HARRISBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA MACHINE RULIN G PEN Application filed September 13, 1929. Serial No. 392,303.

As is well known, pens used on ruling machines are of channel form, substantially V-shaped in cross section. In these channels lie the threads or wicks that deliver the ink to the pens. Certain modern machines have been developed which are exceedingly rapid in operation and it has been found that where the pens are used for struck work, in which the pens are lifted from and dropped upon the paper, the rapid movement of the pens has a tendency to dislodge the ink, causing it to be splashed upon the paper. The object of the present invention is to overcome or at least materially lessen this undesirable action and yet maintain the simplicity of the pen structure.

Two embodiments of the invention are illustrated in the accompanying drawings, wherein:

Figure 1 is a perspective view of one form of construction.

Figure 2 is a longitudinal sectional View on the line 22 of Figure 1.

I Figure 3 is a bottom plan View of the nib end of the pen.

Figures 4 and 5 are cross sectional views respectively on the lines 44 and 55 of Figure 2.

Figure 6 is a perspective view of a modi fied form of construction.

Figure 7 is a sectional view on the line 7-7 of Figure 6.

Figures 8 and 9 are cross sectional views on the lines 8-8 and 99 respectively of Figure 7 In the embodiment disclosed in Figures 1-5 inclusive, the pen comprises an elongated, tapered, tubular body 10 terminating in a nib or point 11 and having at its upper, enlarged end a substantially L-shaped, flat leaf spring or shank 12, the portion 13 of which is adapted to be clamped in the pen beam in any desired or well known manner. By reason of the tubular form of the body, the side walls 14 of said body extend upwardly and inwardly to form a closed top 15. As a consequence it will be evident that no matter how rapidly the pen may be laterally swung or vibrated, the ink will be confined in the body 10 and cannot splash therefrom.

tudinal slot 15 in the top of the pen. These walls obviously prevent the outward splash of the ink from the pen tube and the slot is provided in order that the said tube or bore of the pen body can be more conveniently cleaned by passing the device downwardly through said slot.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim, is:

A pen for ruling machines comprising a shank consisting of a metal leaf having portions in obtuse angular relation, one of said portions being adapted for securement in a pen beam, and a downwardly inclined tubula-r portion extending longitudinally of and from the free end of the other portion of the shank and tapering to a writing point, the upper larger end of the tubular portion being open and located above the plane of the portion of the shank from which said tubular portion extends.

In testimony whereof, I affix my signature.

ROSS A. HICKOK. 

